[Python-3000] threading, part 2 (original) (raw)
Marcin 'Qrczak' Kowalczyk qrczak at knm.org.pl
Tue Aug 8 21:05:24 CEST 2006
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"tomer filiba" <tomerfiliba at gmail.com> writes:
after all, exceptions can occur anywhere in the code, and at any time...
It's impossible to write safe code when exceptions can occur at any time, except when you already happen have the needed atomic primitives available.
Let's say we have a mutable doubly linked list (the list have first and last pointers, each node has next and prev pointers). Please show how to append a first node if exceptions can occur at any time. Not adding the element at all if an asynchronous exception is coming is acceptable, but corrupting the list structure is not.
-- _("< Marcin Kowalczyk _/ qrczak at knm.org.pl ^^ http://qrnik.knm.org.pl/~qrczak/
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